* HeyItsThatGuy: [[{{Terminator}} Miles Dyson]] is Claire's psychiatrist.
** [[MommieDearest Christina Crawford]] is Claire's hippie best friend.
** [[Film/TheLordOfTheRings Éowyn]] and her husband [[Film/TheWarriors Ajax]] are the [[RedHerring Red Herrings]].
** [[Series/{{Revenge}} Lydia Davis]] is the ghost.
* PlayingAgainstType: [[spoiler: This was only the second time that Creator/HarrisonFord played a villain.]]
* ShoutOut: Robert Zemekis consciously shot the film in the style of Creator/AlfredHitchcock, if he had access to digital technology. Also, there are many references to Hitchcock films, such as ''Film/{{Psycho}}'', ''RearWindow'', ''Film/{{Vertigo}}'', ''{{Rebecca}}'' and ''{{Spellbound}}''.
** The neighbors truthful protest of "I didn't kill my wife!", precisely what HarrisonFord said in TheFugitive.